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NASA-IMPACT / veda-data

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Add collection thumbnails #122

Open j08lue opened 1 month ago

j08lue commented 1 month ago

Our collections currently do not have thumbnails.

Motivation

There are several reasons to add collection thumbnails

  1. They make for a much nicer STAC catalog browsing experience in various clients, most notably STAC Browser
  2. We would like other clients, in particular VEDA UI, to be able to load collection thumbnails from STAC instead of from their own parallel config

Example

Planetary Computer is a very nice reference for how to get the most out of STAC:

Microsoft Planetary Computer VEDA Earthdata Dashboard

The collection thumbnail is stored as an asset:

image https://planetarycomputer.microsoft.com/api/stac/v1/collections

Description

In VEDA UI, the concept of "Datasets" maps to STAC collections. It can also map to other things (e.g. CMR concepts etc.), but in the case of STAC, it's just collections.

We already have thumbnails for the Datasets in the VEDA Earthdata Dashboard, which we could just copy over:

image

(see png files in the config repo)

We would need to find a good place to host these thumbnails, as they are not STAC db material, I guess.

We do not want to reference VEDA UI config, because in the future VEDA UI should get them from the STAC-colocated source.

Planetary Computer has them in a dedicated object storage (blob storage in Azure in their case).

Acceptance criteria